®
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 1
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF2038B-2-022607
Notes:
1. Unless noted otherwise, all specifications apply over the operating temperature range with filter soldered to the specified demonstration board with impedance matching to
50 Ω and measured with 50 Ω network analyzer.
2. Unless noted otherwise, all frequency specifications are referenced to the nominal center frequency, fc.
3. Rejection is measured as attenuation below the minimum IL point in the passband. Rejection in final user application is dependent on PCB layout and external impedance
matching design. See Application Note No. 42 for details.
4. "LRIP" or "L" after the part number indicates "low rate initial production" and "ENG" or "E" indicates "engineering prototypes."
5. The design, manufacturing process, and specifications of this filter are subject to change.
6. Tape and Reel Standard ANSI / EIA 481.
7. Either Port 1 or Port 2 may be used for either input or output in the design. However, impedances and impedance matching may vary between Port 1 and Port 2, so that
the filter must always be installed in one direction per the circuit design.
8. US and international patents may apply.
9. RFM, stylized RFM logo, and RF Monolithics, Inc. are registered trademarks of RF Monolithics, Inc.
10. ©Copyright 1999, RF Monolithics Inc.
11. Electrostatic Sensitive Device. Observe precautions for handling.
Electrical Characteristics
Characteristic Sym Notes Min Typ Max Units
Nominal Center Frequency fC176.500 MHz
Passband Insertion Loss IL 10.0 12.0 dB
1dB Passband BW1
1
12.5 14.0 MHz
15dB Bandwidth BW15 16.8 18.0 MHz
30dB Bandwidth BW30 18.0 19.2 MHz
Amplitude Ripple over fc ±6.25 MHz 0.70 1.3 dBP-P
Group Delay Variation over fc ±6.25 MHz GDV 40 150 nsP-P
Rejection 50 to 64.44 MHz
1, 3
40 46
dB
64.44 to 66.70 MHz -40 to 85°C 36 41
64.44 to 66.70 MHz 85 to 105°C 30
86.30 to 87.54 MHz *30 44
87.54 to 91.50 MHz 31 44
91.50 to 100 MHz 40 47
Operating Temperature Range TA1-40 +105 °C
Frequency Coeffieient FTC -87 ppm/°C
Differential Input 175 ohms
Differential Output 180 ohms
Case Style 6SMP-03 7 x 5 mm Nominal Footprint
Lid Symbolization (YY=year, WW=week, S=shift) See note 4 RFM SF2038B YYWWS
SMP-03
•Designed for SDARS IF Receiver
•Low Insertion Loss
•5.0 X 7.0 mm Surface-Mount Case
•Differential or Single Ended Input and Output
•Complies with Directive 2002/95/EC (RoHS)
Absolute Maximum Ratings
Rating Value Units
Maximum Incident Power in Passband +10 dBm
Max. DC voltage between any 2 terminals 30 VDC
Storage Temperature Range (with tape & reel) -40 to +85 °C
Storage Temperature Range (without tape & reel) -50 to +125 °C
Max Soldering Profile 265°C for 10 s
76.500 MHz
SAW Filter
SF2038B-2
Pb
*At low temperature extreme -40°C
76.500 MHz SAW Filter
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 2
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF2038B-2-022607
ReferenceDesignator Value
C1 15 pF
C2 15 pF
L1 270 nH
L2 270 nH
C3 27 pF
C4 27 pF
Wideband SAW Matching Values
Wideband SAW Matching Circuit
Matching Circuit and Matching Component Values Used in G3 Sirius Radios
(Refer to Sirius Radio G3 Chipset Application Note, Doc. #RX000104-B, Sec. 4.2.2)
76.500 MHz SAW Filter
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 3
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF2038B-2-022607
Matching Circuit and Matching Component Values Used on Filter Demo Board
CH1 S21 LOG 10 dB/ REF -10 dB
CENTER 76 .500 000 MHz SPAN 80 .000 000 MHz
SF2038B DEMO
Cor
PRm
18 Apr 2005 16:45:17
1
2
3 4
1:0.0000 dB 0.000 000 MHz
REF=1
CH1 Markers
BW:14 .018412 MHz
cent :76 .407122 MHz
Q:5.4505
1_ loss :-10 .031 dB
C1
C2
L1 RFM
SF2038B
C4
L2
SF2038B
76.500 MHz
C1 = 22pF
C2 = 22pF
L1 = 220nH
L2 = 270nH
C3 = 22pF
C4 = 22pF
Zinput
1:3
Transformer
150Ω150Ω
Zoutput
4:1
Transformer
200Ω200Ω
C3
76.500 MHz SAW Filter
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 4
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF2038B-2-022607
CH1 S21 LOG 1 dB/ REF -10.4 dB
CENTER 76 .500 000 MHz SPAN 40 .000 000 MHz
SF2038B DEMO
Cor
PRm
CH2 S21 DEL 50 ns/ REF 640 ns
Cor
Smo
PRm
18 Apr 2005 16:42:05
1
2
2:-.29950 dB 12 .722 641 MHz
REF=1
CH1 Markers
mean :-9 .9489 dB
s.dev : . 13250 dB
p-p : . 69240 dB
1
2
2:-31 .395 ns 12 .500 000 MHz
REF=1
CH2 Markers
mean :659 .90 ns
s.dev :7.6786 ns
p-p :35 .477 ns
76.500 MHz SAW Filter
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 5
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF2038B-2-022607
CH1 S11 1 U FS
CENTER 76 .500 000 MHz SPAN 40 .000 000 MHz
SF2038B DEMO
Cor
PRm
CH2 S22 1 U FS
Cor
PRm
18 Apr 2005 16:35:10
1
1:44 .537 19 .910 41 .422 nH 76 .500 000 MHz
1
1:53 .521 19 .055 39 .642 nH 76 .500 000 MHz
76.500 MHz SAW Filter
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 6
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF2038B-2-022607
SMP-03 Case
Recommended PCB Footprint
Case Dimensions
Dimension mm Inches
Min Nom Max Min Nom Max
A6.80 7.00 7.20 0.268 0.276 0.283
B4.80 5.00 5.20 0.189 0.197 0.205
C1.65 2.00 0.065 0.079
D.47 0.60 .73 0.019 0.024 0.029
E2.41 2.54 2.67 0.095 0.100 0.105
H0.87 1.0 1.13 0.034 0.039 0.044
J4.87 5.00 5.13 0.192 0.197 0.202
K2.87 3.00 3.13 0.113 0.118 0.123
P1.14 1.27 1.40 0.045 0.050 0.055
Materials
Solder Pad
Termination Au plating 30 - 60 uInches (76.2-152 uM) over 80-
200 uInches (203-508 uM) Ni.
Lid Fe-Ni-Co Alloy Electroless Nickel Plate (8-11%
Phosphorus) 100-200 uInches Thick
Body Al2O3 Ceramic
Pb Free
ElectricalConnections
Connection Terminals
Port 1 Input or Return 10
Return or Input 1
Port 2 Output or Return 5
Return or Output 6
Ground All others
Single Ended Operation Return is ground
Differential Operation Return is hot
A
BCHE
P
D
H
J
K
10-Terminal Ceramic Surface-Mount Case
7 x 5 mm Nominal Footprint
76.500 MHz SAW Filter
RF Monolithics, Inc. Phone: (972) 233-2903 Fax: (972) 387-8148 E-mail: info@rfm.com Page 7
RFM Europe Phone: 44 1963 251383 Fax: 44 1963 251510 http://www.rfm.com
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc. SF2038B-2-022607
Tape and Reel Specifications
“B “
Nominal Size Quantity Per Reel
Inches millimeters
7178 500
13 330 2000
USER DIRECTION OF FEED
COMPONENT ORIENTATION and DIMENSIONS
Carrier Tape Dimensions
Ao 5.5 mm
Bo 7.5 mm
Ko 2.0 mm
Pitch 8.0 mm
W16.0 mm
PIN #1
See Detail "A"
13.0
20.2
2.0
12.0
100 REF.
"B" REF.
16.0
